yhteistyökumppanista

Yhteistyökumppanista is the elative (‑sta/‑stä) form of the Finnish noun yhteistyökumppani, which literally means "cooperation partner" or "collaborative partner." As a declined form, yhteistyökumppanista commonly appears in contexts meaning "about the cooperation partner" (when used with verbs like puhua or tietää) or "from the cooperation partner" (indicating origin or source).

In everyday and professional Finnish, yhteistyökumppani refers broadly to an organization, company or individual with whom an entity collaborates on projects, services, research or commercial activities. Use of the elative form highlights relations of information, origin or movement: for example, tietoa yhteistyökumppanista ("information about a cooperation partner") or palaute yhteistyökumppanista ("feedback from a cooperation partner").

The term is frequent in business, academic and third-sector communications, appearing in contracts, partnership announcements, project descriptions and due-diligence materials. It can relate to suppliers, subcontractors, research collaborators, funding partners and other external stakeholders. Synonymous or related expressions include kumppanista (from/about a partner) and yhteistyöstä (about cooperation), each with subtle grammatical or semantic differences.

Understanding yhteistyökumppanista thus requires both vocabulary knowledge and case grammar: the base concept of partnership plus the elative case function that conveys "about" or "from" depending on the verb and context.